Bookholder



Nov. 1, 1927.

s. PETRICK ET AL BOOK HOLDER Filed Ma 20. 1 52s 2120671 18 6 (WWW? 4 626% w 7 Patented Nov. 1, 1927.

ED STATES l.647,93ll* rarer .FFICE.

EDWARD S. LE'ETRICK nun FRANK J. PETRICK, OF CEICAGQ, ILLINOIS.

BOOKHOLDERL Application filed May 20,

This invention relates to bookholders and its object is to provide a strong and substantial device oi simple construction which can be easily operated for holding a large heavy book in open or closed position and capable of being adjusted to. suit the requirements of the user.

The invention also has for its object to simplify the construction and arrangement or: parts of a boolrholder to enable it to be easily made and assembled, and to improve the construction and arrangement so that the boolrholder will prove more efficient and stand the service and withstand the abuse to which such boolzholders are ordinarily subjected.

In the accompanying drawings illustrating a selected embodiment of the invention,

Fig. 1 is aside elevation showing the holder closed.

2 is a detail enlarged sectional view showing the holder closed in full lines and open in broken lines.

Fig. 3 is a detail enlarged sectional view showing the tilting head adjustment.

Fig. i is a top plan view of the holder in closed position, without the stand or support.

Fig.

Fig. 6 is a section on the line 6--6 of liig. 1.

Referring to the drawings the bookholder comprises a head adapted to receive and hold the book and adjustably mounted on a standard which forms part of a stand or support. The standard '7 is mounted on folding legs 8 and a shelf 9 is secured in adjusted position on the standard above the legs by a thumb screw 10.

A segment 11 is pivoted on a pin 12 in a forked guide member 13 mounted on the upper end or the standard 7 and this segment is provided with teeth 14: which are engaged by a thumb screw 15 operating through the guide member to secure the segment and the bookholder mounted thereon in adjusted position with relation to the standard. The segment is carried by or formed integrally with a bracket 16 which has two sides 17 arranged in parallel relation. Two guide rods 18 are mounted in parallel horizontal position in the sides 17 of the bracket 16 and between these two guide rods a screw rod 19 is mounted, said screw rod having a reverse thread on its is a section on the line 55 of 1926. Serial No. 110,505.

end portions and provided at one end with a palm head 20.. Mounted on the guide. and:

vided with openings to receive the three rods, the center opening receiving the screw rod hem threaded to engage the thread;

of the rod. The support is also provided with two projections 23 spaced from the iiange and provided with openings to receive the two guide rods, there being no such projection for the screw rod. The guide rods and the screw rod are mounted. in parallel relation in the spaced sides 17,. 17 of the bracket 16, whereby they are held. in horizontal position andin proper rela: tion to each other. The supports are engaged with the two guide rods and the screw rod at the flanges. 22 and with the. guide rods at the projections 23 which are spaced from the flanges 22, whereby the. supports are held rigidly in adjusted position on said rods. The leaves 24 of the;- boohholder are riveted or otherwise secured to straps25 which are slotted to receive the arms 21 on the supports and bent to. form. eyes 25 to engage the pivot pins 26, whereby the leaves are pivotally mounted on" the. supports. Springs 27 are fastened to the. supports 21 and to cross bars 28 whichv are engaged with lugs 29 struck up from the. straps The pivot or hinge end portions 25 of the straps 25 are bent substantially at right angles to the leaves 24: so that the leaves will be spaced in closed position away from the supports 21 and in substantially parallel relation thereto. The inward closing movement of the leaves is limitedby stops 80 on the arms 21. The integral pivot or hinge portions engage stops 30. at theupper ends oi the supports 21 to limit the opening movement of the leaves and to hold the leaves in horizontal position as indicated in broken lines in Fig. 2. The springs 27 are fastened to the leaves above the pivots 26 so that the upper ends of the springs will travel across the center of the pivots when the leaves are swung between open and closed positions and will hold the leaves in closed position or in open position under tension.

The upper margins 31 and the top margins 32 ot' the leaves are bent over and crimped snugly against the inner side of the leaves; the back margins 33 of the leaves are bent over and crimped snugly against the outer side of the leaves, and these crimped portions are bent outwardly, as shown in Fig. 2, to prevent injury to the back of the book. The leaves are bent inwardly at 34: to form bottom rests for the book and the margins 35 of these bottom rests are bent over and crimped snugly against the outer side of the bottom rests. The crimped margins strengthen the leaves, avoid rough sharp edges and prevent wear on the book. For this purpose I also desire to flare the upper outer ends of the leaves outwardly at 24'.

The back support 36 is provided with a looped strap 37 which engages the three rods between the sides 17 of the bracket 16 whereby the back is held always in rigid position centrally disposed between the leaves to receive and support the back of the book.

Our invention provides a bookholder of simple construction comprising few parts which are strong and substantial, which can be easily adjusted for books of dillerent sizes and which can be easily manipulated to open or close the book. The bookholder will support the book in closed or in open position and the parts are so disposed and arranged that they are not likely to become loosened or dislodged from their proper relation during ordinary usage of the bookholder.

The segment 11 is provided with a back stop 11 to engage the guide member 13 and limit the swinging movement of the head in a rearward direction. This guide member is engaged with the standard 7 by means of a set screw 13 which engages an annular groove 7 in the standard to permit the head to revolve freely on the standard while it is permanently secured thereto. The rear ends of the bottom rests 34 are bent downwardly at 84 so that they will clear the back edge of the bookbinding and avoid damaging it.

\Ve are aware that changes in the form, construction and arrangement of parts may be made without departing from the spirit or sacrificing the advantages of the invention and we reserve the right to make all such changes as fall within the scope of the following claims.

We claim:

1. In a book holder, a stand, a segment pivotally mounted in said stand, flanges formed on said segment and having an opening therein, a pair of rods rigidly supported in said flanges and extending therethrough, a pair of supports slidably mounted on said rods, and means cooperating with said supports to move said supports simultaneously and equally towards or away from each other.

2. In a book holder, a stand, a segment pivotally mounted in said stand, flanges formed on said segment and having an opening therein, a pair of rods rigidly supported in said flanges and extending therethrough, a rod having right and left hand threads extending through said opening, a pair of supports slidably mounted on said rods and having threaded an opening therein to receive said threaded rod whereby movement of the threaded rod causes both of the supports to move equally and simultaneously towards or away from each other simultaneously.

3. In a book holder, a stand, a segment pivotally mounted in said stand, parallel rods rigidly mounted in said segment, a pair of supports slidably mounted on said rods and having a threaded hole therein, and a threaded rod loosely mounted in said segment and cooperating with the threaded hOle in said supports whereby rotation of the threaded rod will cause said supports to move toward or away from each other.

at. In a book holder, an adjustable stand, a segment pivotally mounted in said stand, flanges formed on said segment and having an opening therein, a pair of rods rigidly supported in said flanges and extending therethrough, a pair of supports slidably mounted on said rods, leaves pivotally mounted on said supports, and means cooperating with said supports to move said leaves simultaneously and equally towards or away from each other.

5. In a book holder, a collapsible stand, a segment pivotally mounted in said stand, flanges formed on said segment and having an opening therein, a pair of rods rigidly supported in said flanges and extending therethrough, a pair of supports slidably mounted on said rods, leaves pivotally mounted on said supports, a spring for holding said leaves in open or closed position, means cooperating with said supports to move said leaves simultaneously and equally towards or away from each other, and means for adjusting said stand.

6. In a book holder, a collapsible stand, a segment pivotally mounted in said stand, flanges formed on said segment and having an opening therein, a pair of parallel rods rigidly supported in said flanges and extending therethrough, a pair of supports sildably mounted on said rods, leaves pivotally mounted on said supports, said leaves having the inner ends thereof bent outward to keep the same from marring or tearing a book, 2. lug formed on each support, a removable rod mounted on the back of said leaves, a spring connected to said lug and said rod for holding said leaves in open or closed position, means cooperating with said supports to move said leaves simultaneously and equally towards or away from each other, and means for adjusting said stand.

EDWARD S. PETRICK. FRANK J. PETRICK. 

